Global Patent Index - EP 3785918 B1

EP 3785918 B1 20230802 - VALVE DEVICE, IMAGE FORMING APPARATUS, AND METHOD FOR DETERMINING THE DETERIORATION DEGREE OF A VALVE

Title (en)

VALVE DEVICE, IMAGE FORMING APPARATUS, AND METHOD FOR DETERMINING THE DETERIORATION DEGREE OF A VALVE

Title (de)

VENTILVORRICHTUNG, BILDERZEUGUNGSVORRICHTUNG UND VERFAHREN ZUR BESTIMMUNG DES VERSCHLECHTERUNGSGRADES EINES VENTILS

Title (fr)

DISPOSITIF DE SOUPAPE, APPAREIL DE FORMATION D'IMAGES ET PROCÉDÉ DE DÉTERMINATION DU DEGRÉ DE DÉTÉRIORATION DE LA SOUPAPE

Publication

EP 3785918 B1 20230802 (EN)

Application

EP 20190843 A 20200813

Priority

JP 2019153982 A 20190826

Abstract (en)

[origin: EP3785918A1] A valve device includes a flow channel section where fluid flows, a reserving section that reserves fluid from the flow channel section, a valve that switches between opening and blocking of the fluid flow in the flow channel section based on an operation signal, and a determination section that determines a deterioration degree of the valve on a basis of an operation of the valve based on the operation signal and of pressure in the reserving section.

IPC 8 full level

B41J 2/175 (2006.01)

CPC (source: CN EP US)

B41J 2/01 (2013.01 - CN); B41J 2/17503 (2013.01 - CN US); B41J 2/17596 (2013.01 - EP US); B41J 29/393 (2013.01 - CN US); F16K 37/0041 (2013.01 - US); G01M 13/003 (2018.12 - CN); G01M 13/003 (2018.12 - US)

Citation (examination)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3785918 A1 20210303; EP 3785918 B1 20230802; CN 112428689 A 20210302; CN 112428689 B 20220517; JP 2021032739 A 20210301; JP 7331555 B2 20230823; US 2021062936 A1 20210304

DOCDB simple family (application)

EP 20190843 A 20200813; CN 202010856920 A 20200824; JP 2019153982 A 20190826; US 202017003353 A 20200826